3h^2+12h-4891=0

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Solution for 3h^2+12h-4891=0 equation:


Simplifying
3h2 + 12h + -4891 = 0

Reorder the terms:
-4891 + 12h + 3h2 = 0

Solving
-4891 + 12h + 3h2 = 0

Solving for variable 'h'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-1630.333333 + 4h + h2 = 0

Move the constant term to the right:

Add '1630.333333' to each side of the equation.
-1630.333333 + 4h + 1630.333333 + h2 = 0 + 1630.333333

Reorder the terms:
-1630.333333 + 1630.333333 + 4h + h2 = 0 + 1630.333333

Combine like terms: -1630.333333 + 1630.333333 = 0.000000
0.000000 + 4h + h2 = 0 + 1630.333333
4h + h2 = 0 + 1630.333333

Combine like terms: 0 + 1630.333333 = 1630.333333
4h + h2 = 1630.333333

The h term is 4h.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4h + 4 + h2 = 1630.333333 + 4

Reorder the terms:
4 + 4h + h2 = 1630.333333 + 4

Combine like terms: 1630.333333 + 4 = 1634.333333
4 + 4h + h2 = 1634.333333

Factor a perfect square on the left side:
(h + 2)(h + 2) = 1634.333333

Calculate the square root of the right side: 40.426888738

Break this problem into two subproblems by setting 
(h + 2) equal to 40.426888738 and -40.426888738.

Subproblem 1

h + 2 = 40.426888738 Simplifying h + 2 = 40.426888738 Reorder the terms: 2 + h = 40.426888738 Solving 2 + h = 40.426888738 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + h = 40.426888738 + -2 Combine like terms: 2 + -2 = 0 0 + h = 40.426888738 + -2 h = 40.426888738 + -2 Combine like terms: 40.426888738 + -2 = 38.426888738 h = 38.426888738 Simplifying h = 38.426888738

Subproblem 2

h + 2 = -40.426888738 Simplifying h + 2 = -40.426888738 Reorder the terms: 2 + h = -40.426888738 Solving 2 + h = -40.426888738 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + h = -40.426888738 + -2 Combine like terms: 2 + -2 = 0 0 + h = -40.426888738 + -2 h = -40.426888738 + -2 Combine like terms: -40.426888738 + -2 = -42.426888738 h = -42.426888738 Simplifying h = -42.426888738

Solution

The solution to the problem is based on the solutions from the subproblems. h = {38.426888738, -42.426888738}

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